The miracle of man is not how far he has sunk but how magnificently he has risen. We are known among the stars by our poems, not our corpses.

Animal language is a contagious expression of mood effecting communication between social partners.

The city is a cultural invention enforcing on the citizen knowledge of his own nature. And this we do not like. That we are aggressive beings, easily given to violence; that we get along together because we must more than because we want to, and that the brotherhood of man is about as far from reality today as it was two thousand years ago; that reason's realm is small; that we never have been and never shall be created equal; that if the human being is perfectible, he has so far exhibited few symptoms - all are considerations of man from which space tends to protect us.

We may agree, for example, that our societies must provide greater security for the individual; yet if all we succeed in producing is a providing increased anonymity and ever increasing boredom, then we should not wonder if ingenious man turns to such amusements as drugs, housebreaking, vandalism, mayhem, riots, or - at the most harmless - strange haircuts, costumes, standards of cleanliness, and sexual experiments.

Natural selection deals ruthlessly with any population, bird or beaver, which fails to solve the problems of its environment with all those resources, learned or unlearned, which may be at its disposal.

If you watch lizards and lions copulating, then you will see that in 200 million years the male has not had a single new idea.

We are born of risen apes, not fallen angels.